Which two statements are true about single row functions? (Choose two.)

A database is configured to use automatic undo management with temporary undo enabled.
An UPDATE is executed on a temporary table.
Where is the UNDO stored?

Examine this description of the TRANSACTIONS table:

Which two SQL statements execute successfully? (Choose two.)
SELECT customer_id AS "CUSTOMER-ID", transaction_date AS DATE, amount + 100

Your database instance was shut down normally and then started in NOMOUNT state. You then execute this command:
ALTER DATABASE MOUNT;
Which two actions are performed? (Choose two.)

You execute this command:

During the export operation, you detach from the job by using CTRL+C and then execute this command:
Export> STOP_JOB=immediate
Are you sure you wish to stop the job ([yes]/no): yes
Which two statements are true about the job? (Choose two.)